Purpose: We recently found that loss of anterior chamber-associated immune deviation was associated with normal pregnancy in rabbits. The purpose of this study is to further investigate whether the same events occurre...Purpose: We recently found that loss of anterior chamber-associated immune deviation was associated with normal pregnancy in rabbits. The purpose of this study is to further investigate whether the same events occurred in nonhuman primates. Methods: Mid-pregnant cynomolgus monkeys were randomly selected. Bovine serum albumin (BSA) was inoculated in anterior chamber of eyes of nonpregnant and mid-pregnant monkeys that were subsequently immunized with BSA in adjuvant. Delayed-type hypersensitivity (DTH) was assessed by skin challenge.Results: Non-pregnant monkeys of intracameral BSA proved able to acquire antigen-specific suppression of delayed-type hypersensitivity. By contrast, inoculation of BSA to anterior chamber of pregnant monkeys abolished the DTH-suppression effect. Conclusions: This is the first demonstration in primates that loss of anterior chamber-associated immune deviation occurred during normal pregnancy. The fluctuations of systemic hormone levels during normal pregnancy might influence展开更多
Purpose: To determine whether the vitreous cavity(VC) supports the induction of deviant immune responses to retinal soluble(S) antigen and to observe the influence of interleukin-1 (IL-1) on the immunologic propertie...Purpose: To determine whether the vitreous cavity(VC) supports the induction of deviant immune responses to retinal soluble(S) antigen and to observe the influence of interleukin-1 (IL-1) on the immunologic properties of the VC. Methods: Retinal S antigen was inoculated into the anterior chamber(AC) and the VC in Wistar rats. Seven days after antigen inoculation, the recipient animals were immunized with S antigen and complete Freund's adjuvant. Delayed-type hypersen- sitivity(DTH) was assessed by footpad challenge. To alter systemic immune conditions,IL-1 was administrated by intraperitoneal injection.Results: Antigen-specific DTH did not develop in rats in which S antigen was injected into the AC and the VC. By contrast, when IL-1 administrated systemically, S antigen was injected into the AC and VC elicited strong DTH.Conclusion: The VC supports immune deviation for soluble antigen by acitivity suppressing antigen-Specific DTH. Systemic administration of exogenous IL-1 eliminates the capacity of the VC to support immune deviation to soluble antigen locally injected.展开更多
Background Anterior chamber associated immune deviation （ACAID） is characterized by a Th2 cell response. GATA-3 has been shown to be necessary for the activation of Th2 cells. This study was designed to examine the ...Background Anterior chamber associated immune deviation （ACAID） is characterized by a Th2 cell response. GATA-3 has been shown to be necessary for the activation of Th2 cells. This study was designed to examine the expression of GATA-3 in the development of ACAID.Methods ACAID was induced by injection of 50 μg interphotoreceptor retinoid binding protein （IRBP） into the anterior chamber （AC） of Wistar rats. Delayed-type hypersensitivity （DTH） was evaluated on day 3, 7, 14, 21, 28 after IRBP inoculation. GATA-3 expression was detected using immunohistochemical staining. The expression of GATA-3 mRNA at different time points after AC injection of IRBP was assayed by reverse transcriptase polymerase chain reaction （RT-PCR）.Results A significant DTH reaction was observed in Wistar rats on day 3 and 5 after II^BP inoculation. Jne DTH reaction was decreased 7 days after IRBP inoculation. GATA-3 expression was weak at both mRNA and protein levels in the normal spleen, but was significantly increased on day 5, 7, 14, and 21 after AC injection of IRBP.Conclusion The expression of GATA-3 is increased during ACAID, suggesting that GATA-3 may be involved in the development of ACAID.展开更多
基金Project supported by the National Natural Science Foundation of China (NNSFC)(No:39500158)Huo Yingdong Education Foundation in Ministry of EducationNatural Science Foundation of Guangdong Province (No.960208)
文摘Purpose: We recently found that loss of anterior chamber-associated immune deviation was associated with normal pregnancy in rabbits. The purpose of this study is to further investigate whether the same events occurred in nonhuman primates. Methods: Mid-pregnant cynomolgus monkeys were randomly selected. Bovine serum albumin (BSA) was inoculated in anterior chamber of eyes of nonpregnant and mid-pregnant monkeys that were subsequently immunized with BSA in adjuvant. Delayed-type hypersensitivity (DTH) was assessed by skin challenge.Results: Non-pregnant monkeys of intracameral BSA proved able to acquire antigen-specific suppression of delayed-type hypersensitivity. By contrast, inoculation of BSA to anterior chamber of pregnant monkeys abolished the DTH-suppression effect. Conclusions: This is the first demonstration in primates that loss of anterior chamber-associated immune deviation occurred during normal pregnancy. The fluctuations of systemic hormone levels during normal pregnancy might influence
基金Project supported by the National Natural Science Foundation of China(No:395001580)Huo Yingdong Education Foundation in Ministry of EducationNatural Science Foundation of Guangdong Province(No.960208)
文摘Purpose: To determine whether the vitreous cavity(VC) supports the induction of deviant immune responses to retinal soluble(S) antigen and to observe the influence of interleukin-1 (IL-1) on the immunologic properties of the VC. Methods: Retinal S antigen was inoculated into the anterior chamber(AC) and the VC in Wistar rats. Seven days after antigen inoculation, the recipient animals were immunized with S antigen and complete Freund's adjuvant. Delayed-type hypersen- sitivity(DTH) was assessed by footpad challenge. To alter systemic immune conditions,IL-1 was administrated by intraperitoneal injection.Results: Antigen-specific DTH did not develop in rats in which S antigen was injected into the AC and the VC. By contrast, when IL-1 administrated systemically, S antigen was injected into the AC and VC elicited strong DTH.Conclusion: The VC supports immune deviation for soluble antigen by acitivity suppressing antigen-Specific DTH. Systemic administration of exogenous IL-1 eliminates the capacity of the VC to support immune deviation to soluble antigen locally injected.
文摘Background Anterior chamber associated immune deviation （ACAID） is characterized by a Th2 cell response. GATA-3 has been shown to be necessary for the activation of Th2 cells. This study was designed to examine the expression of GATA-3 in the development of ACAID.Methods ACAID was induced by injection of 50 μg interphotoreceptor retinoid binding protein （IRBP） into the anterior chamber （AC） of Wistar rats. Delayed-type hypersensitivity （DTH） was evaluated on day 3, 7, 14, 21, 28 after IRBP inoculation. GATA-3 expression was detected using immunohistochemical staining. The expression of GATA-3 mRNA at different time points after AC injection of IRBP was assayed by reverse transcriptase polymerase chain reaction （RT-PCR）.Results A significant DTH reaction was observed in Wistar rats on day 3 and 5 after II^BP inoculation. Jne DTH reaction was decreased 7 days after IRBP inoculation. GATA-3 expression was weak at both mRNA and protein levels in the normal spleen, but was significantly increased on day 5, 7, 14, and 21 after AC injection of IRBP.Conclusion The expression of GATA-3 is increased during ACAID, suggesting that GATA-3 may be involved in the development of ACAID.
